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Round|Lab Grown|IGI

1.33ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG492111875

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492111875

Diamond specifications and retailer prices

From £559 GBP
$750 USD
As of October 31, 2026
Save £2,329 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,888 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492111875 or 492111875. Listed at 12 retailers as of October 31, 2026, with prices from £559 to £2,888, a £2,329 spread on the same certified stone. MOH London lists it at £2,888. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492111875
Dimensions7.05 × 7.01 × 4.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.05 mm7.01 mm1.33 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492111875
Side View
Table 57.5%Crown 35.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,888 GBP|Low: £531 GBP|High: £2,927 GBP|Avg: £1,208 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 2£559 GBP
Retailer 8£665 GBP
Retailer 11£744 GBP
Retailer 9£771 GBP
Retailer 13£771 GBP
Retailer 12£902 GBP
Retailer 4£962 GBP
Retailer 3£1,139 GBP
Retailer 10£1,236 GBP
Retailer 6£1,417 GBP
Retailer 7£1,715 GBP
Retailer 5£1,725 GBP
MOH London£2,888 GBP

23 data points across 13 retailers

12 retailers£559 GBP to £2,888 GBP

A
Cheapest Retailer
-
£559 GBP
$750 USD
B+
Retailer 2
-
£665 GBP
$892 USD
View
B+
Retailer 3
-
£723 GBP
$970 USD
View
B+
Retailer 4
-
£744 GBP
$998 USD
View
Final sale: no returns
B+
Retailer 5
-
£771 GBP
$1,034 USD
View
Retailer 6
-
£771 GBP
$1,034 USD
View
Price last confirmed 16 days ago
B
Retailer 7
-
£902 GBP
$1,210 USD
View
B
Retailer 8
-
£1,236 GBP
$1,659 USD
View
B
Retailer 9
-
£1,417 GBP
ZAR 30,710 ZAR
View
B
Retailer 10
-
£1,715 GBP
$2,301 USD
View
B
Retailer 11
-
£2,167 GBP
$2,908 USD
View
Most Expensive
B
MOH London
LG492111875 · Nov 1
£2,888 GBP
View
11 more retailers have this diamond
Prices start from £559 GBPSave up to £2,329 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.33ct Round
£559 GBP